Khan/khan-exercises — Issue #5045: Corresponding angles - proof for corresponding angles?
Author: KhanBugz
Created: 2011-10-26 19:51:56+00:00
State: open
Labels: firefox, snowleo

the video says there is no proof, the hints say there is a proof

inconsistent

[corresponding_angles.html?seed=11&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/corresponding_angles.html?seed=11&problem=0&debug)

["160"]

Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.23) Gecko/20110920 Firefox/3.6.23

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